Muscle Synergy Analysis Between Young and Elderly People in Standing-Up Motion
نویسندگان
چکیده
Standing up is fundamental to daily activities of the elderly. It is necessary both to enhance muscle strength and to strengthen muscle coordination for improvement of their motor function. In this paper, we extract important data related to muscle coordination, called synergy, to perform standing motion by young and elderly participants. The contribution of muscle synergy to body kinematics is calculated through neural networks that estimate joint torque and body kinematics. To explain deficient motor function in elderly persons, extracted synergy is classified into 4 clusters based on how synergy contribute to body kinematics. Cluster analysis explains that elderly participants have weaker synergy than young persons in bending their backs to generate momentum. Compared to younger persons, older persons require additional muscle coordination to stabilize posture after standing-up in order to avoid falling.
منابع مشابه
Analysis of Human Standing-Up Motion Based on Distributed Muscle Control
In developed countries, an aging society has become a serious issue; many activities of daily living (ADL) are impaired in the elderly. In order to improve this situation, it is necessary to develop an assisting method for the human standingup motion because it is considered to be an important factor to ADL. It is unclear, however, how humans coordinate their multiple distributed actuators, mus...
متن کاملEvaluation of Morphological Changes in Muscle Fibers and Neuronal Terminals of Motor Neurons in Male Rats from Childhood to Old Age
Introduction: The aim of this study was to investigate the effect of time and age on morphological changes in male rats. Methods: For conducting this study, 15 male Wistar rats in three age groups of 2 weeks (150-100 g), 6 weeks (250-220 g) and 96 weeks (320-280 g) were kept in Pasargad Tissue and Gene Laboratory in Tehran City for six weeks and 48 hours later they were dissected and the soleu...
متن کاملThe Relationship Between Muscle Strength and Range of Motion in Lower Extremity, and Balance and Risk of Falling in the Elderly
Background: The present study examined the relationship between muscle strength and range of motion in the lower extremity, and balance and risk of falling in the elderly. Methods: This cross-sectional study was conducted on healthy elderly (mean±SD age: 65.64±4.95 y) in Rasht City, Iran. The study participants were 65 healthy male elderly who met the stud inclusion criteria. They were selecte...
متن کاملThe comparison of spinal curves and hip and ankle range of motions between old and young persons
Background :Falls have been strongly associated with decreased physical activity and impaired mobility. Reduced range of motion, as a consequence of muscle stiffness, has been indicated to assume a positive relationship to fall incidence. Also clinical observations suggest that maintaining the normal spinal curves is associated with the prevention of spinal, knee and hip disorders. Thus, the ...
متن کاملSpatio-Temporal Parameters' Changes in Gait of Male Elderly Subjects
Objectives: The purpose of this study was to compare spatio-temporal gait parameters between elderly and young male subjects. Methods & Materials: 57 able-bodied elderly (72±5.5 years) and 57 healthy young (25±8.5 years) subjects participated in this study. A four segment model consist of trunk, hip, shank, and foot with 10 reflective markers were used to define lower limbs. Kinematic data c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- JRM
دوره 25 شماره
صفحات -
تاریخ انتشار 2013